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Glossmeter (glass meter)

Glossometer is one of the laboratory equipments that the glossy units of painted surfaces usually measure the gloss from the reflection angle of 20 degrees, 60 degrees and 85 degrees. When choosing the right angle to measure gloss, it is important to consider the gloss range of the surface. Gloss gauges can be used on smooth, refined or unrefined surfaces such as stone, wood, laminate, flooring and more. Therefore, the opacimeter is a versatile measurement tool used in a variety of practical applications.

براقیت سنج

Types of glossometers

PCE-GM 60Plus Gloss Meter Specifications

The PCE-GM 60Plus Gloss Meter is a 60 degree portable gloss meter. This glossy and color measuring device measures the glossy units (GU) on the surface of a material. 

Rechargeable gloss meter or gloss tester uses reflected light to measure gloss according to ISO 2813, GB / T 9754, ASTM D523 and ASTM D2457 standards.

– Measurement of geometry:  60  degree  angle   – Measurement range: 0… 200 GU – 3.5 inch TFT touch screen – Measurement accuracy ± 1.5 GU – Light source: D65 – Wavelength: 400-700 nm

براقیت سنج PCE-GM 60Plus - Glossometer

PCE-GM Gloss Meter Specifications 75

The gloss meter has a measuring surface of 4.5 mm. Thanks to this small measuring surface, the gloss meter makes it possible to measure on very small surfaces. Glossometer with a maximum inaccuracy of 1% is a high-precision measuring tool for quick and easy measurements on surfaces.

– Measuring range up to  1000 GU
– For measuring on small surfaces
– Accurate measurement thanks to high accuracy
– Micro USB interface for PC connection
– Data memory for later evaluations
– Data memory:  1245 Measured value

متر براق PCE-GM 75

PCE-GM 60Plus-ICA glossometer includes ISO calibration certificate ISO calibration

The PCE-GM 60Plus is a 60 degree portable gloss meter. This glossy and color measuring device measures the glossy units (GU) on the surface of a material. Rechargeable gloss meter or gloss tester uses reflected light to measure gloss according to ISO 2813, GB / T 9754, ASTM D523 and ASTM D2457 standards.

– Measurement of geometry: 60 degree angle – Measurement range: 0… 200 GU – Measurement accuracy ± 1.5 GU – 3.5 inch TFT touch screen – Light source: D65 – Wavelength: 400-700 nm – Includes ISO calibration certificate

متر براق PCE-GM 60Plus-ICA شامل گواهی کالیبراسیون ISO کالیبراسیون ISO

PCE-PGM 60 glossometer

PCE-PGM 60 is a hand-held gloss meter or gloss tester that is used to evaluate the luminosity of different surfaces of materials. The glass meter includes a 3.5-inch TFT touch screen, internal memory and computer-compatible software for detailed analysis.

– Measurement of geometry:  60 degree angle
– Measurement range: 0… 300 GU
– Standards: ISO 2813 / GB / T 9754 / ASTM D 523 / ASTM D 2457
– Includes computer compatible software for accurate analysis
– Light source
Wavelength : D65 : 400-700 nm

متر براق PCE-PGM 60

PCE-RM 100 gauge

The PCE-RM 100 Gloss Meter is used to measure the reflectance properties of turbidity-related surfaces. PCE-RM 100 Gloss Meter is used in glass painting, film quality, paper opacity, light shade and the hiding power of colors, inks and coatings. 

– Measuring range:  0… 100 (0 is clear and 100 is completely opaque)
– Optical measuring angle: 45 degree angle
– Measurement accuracy: ± 1
– Image resolution: 0.1
– Battery performance
– Interface and software


متر براق PCE-RM 100

PCE-IGM 60 gloss meter

PCE-IGM 60 Optometry is an optical measuring instrument with 60 degree geometry. The surface is measured by a gloss meter and then the result is shown. Each surface has the property of reflecting light.

– Measuring geometry:  60 degree angle
– Measuring range:  0… 300 GU
– Standards: ISO 2813 / GB / T 9754 / ASTM D 523 / ASTM D 2457
– Light source: D65
– Wavelength: 400-700 nm

متر براق PCE-IGM 60

Application of glossometer

  1. automobile industry 
  2. printing industry

Why measure with a gloss meter?

A glossy package adds perceived value to a product. In fact, it has been shown that the level of gloss of a product as much as its color affects the consumer psychologically. However, on food packaging, the gloss exceeds the maximum customer attractiveness. 

Gloss plays an important role in ensuring consumer safety. For example, if the glossy surface of an ultraviolet varnish decreases during the production of food packaging, there may be cooking problems.

 Poorly cooked inks, paints and coatings can rub, crush and flake the packaging to contaminate the food inside. However, by monitoring the gloss level of food packaging during production, using a polishing device, such problems can be detected early to avoid the cost of repainting or recalling.

In addition to packaging, glossmeters can be used for materials, components and products themselves. Gloss tester or gloss tester provides a quick and easy way to evaluate the surface features of your products to production and quality control professionals.

Glossometer or glass meter is especially useful for manufacturers who produce large size products. When producing large sizes, it is essential to use a gloss meter to ensure that the colors and gloss are the same in each product. This is a common expectation from customers. Several factors can affect the gloss of the surface, including the amount and type of coating, the smoothness of the polish and the quality of the substrate.

Using a glossometer and good quality control techniques, gloss diversity can be quickly, easily and accurately assessed using a professional PCE Instruments (PCE) professional glossmeter. Thousands of manufacturing and quality control professionals use PCE digital glass meters to evaluate the standards and safety of their products. Each glossometer provided by PCE is compact, user-friendly and designed to measure gloss on site.

This makes PCE gloss testers useful for checking gloss levels at the production level or even on the farm.

How to measure gloss with a gloss meter

To choose the right gloss meter for your application, you need to evaluate whether the surface you want to test is high gloss, medium gloss (semi) or low gloss. You also want to consider the type of material being tested with a gloss meter. After determining these properties, you can use the following instructions to determine the angle required to obtain the most accurate measurement:

20 degrees = high gloss coatings, plastics, glossy metals and similar materials
60 degrees = medium gloss coatings (semi), plastics, glossy metals and similar materials
85 degrees = low gloss coatings, plastics, glossy metals And similar materials

Gloss is measured by directing a beam of constant intensity light at a constant angle to the test surface and then monitoring the reflection of light from the same angle. This visual reflection is measured using a gauge.


High gloss

Surfaces with a glossy or very polished surface clearly reflect the images. This distinctive reflection is due to the reflection of incidental light on the surface in a spectacular direction. Different surfaces require different angles of reflection.

براقیت بالا

Shiny Half and Matt

Semi-opaque surfaces reflect images with less resolution and less intensity.

On semi-opaque or opaque surfaces, light not only reflects in the blinking direction but is also scattered, making the reflected image appear scattered.

براق نیمه و مت

Choose the right angle to measure gloss

Gloss measurement is based on the amount of light reflected on the surface relative to the polished glass reference standard measured in glossy units (GU). The amount of light reflection on the surface depends on the angle of impact and the properties of the surface.

Gloss is divided into two categories: matte, semi-gloss or long. To determine the most appropriate measuring angle, start with a polisher at a 60 degree angle.

انتخاب زاویه مناسب برای اندازه گیری براق


If the result is between 10 – 70GU, the coating is called “semi-gloss” and should be measured using a 60-degree gloss angle. If the result is less than 10GU, the product is “low gloss” and should be measured using an 85 degree angle of gloss, and if it is more than 70GU, the product is known as “high gloss” and should be measured using a 20 degree angle. Shine.

All three angles should be recorded (20, 60 and 85 degrees) when measuring gloss on anodized metals to ensure a full understanding of the visual reflection between the coating and the metal substrate.

Glossy rangeThe value of 60 degreesMeasure with
High gloss> 70GU20 degrees
Semi-gloss10 – 70GU60 degrees
Low / mat<10GU85 degrees
محدوده براق

Ref Reflection

While the GU scale is linear, each angle of incidence has a different measurement range. 0 – 2000GU (20 degrees), 0 – 1000GU (60 degrees), 0 – 160GU (85 degrees).

Ref compares the reflection of the amount of optical energy transmitted and received by a glossometer and expresses the value as a percentage of the angle of the complete measurement range of the event and displays its value as a percentage of the selected input angle Be


The measuring range for the 20 degree glossmeter is 0-2000GU. The value of 1000GU is expressed in 20 degrees 50 ٪ 20 and the value of 500GU is expressed in 25 ٪ 20. The value is 500GU at 60 degrees, but is expressed as 50 ٪ 60 because the measuring range for 60 degrees is 0-1000GU.

The more glossy the surface, the closer it is to 100%.

High refractive index materials, such as clear plastics or lacquers, can have measurements in excess of 100GU. Highly reflective metals can have a luster value of up to 2000 GU. 

In addition, the measurement value can be increased for transparent materials due to the multiple reflections in the bulk of the material. In all these cases, it is common to express the measurement results in ٪ reflections.

Ref بازتاب Ref بازتاب



Haze reduces the reflected contrast and creates an “aura” around the reflected light sources, significantly reducing the quality of vision.

According to ASTM D4039 Haze, the Elcometer 480 Gloss Meter is defined as the numerical difference between 60 ° and 20 ° reflection. This is expressed in Haze (HU) units.

مه در براقیت سنج

 values ​​using this method with a gloss tester at a constant angle of occurrence act as reference values ​​that are relative to the gloss of the surface.

 The gloss gauge head, which is compatible with the angle of entry (20 °, 60 °, 85 °), is placed on the surface of the material and its gloss value can be read on the gauge scale. The gloss meter should be calibrated and a sufficient amount of information should be statistically determined. The measuring angle is determined in advance by the gloss of the sample to be measured with a gloss meter.


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